The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2003
Filed:
Jan. 25, 2002
Masahiro Asai, Saitama, JP;
Masaki Ban, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A drive unit for a prosthetic limb for driving a prosthetic limb with comfort for a long time. A Stirling engine is composed of a displacer unit mounted at an arbitrary portion other than prosthetic limb bodies and a power cylinder unit mounted between the prosthetic limb bodies and for bending/stretching the prosthetic limb bodies and relative to each other. A compression chamber of the displacer unit is connected to an operation chamber of the power cylinder unit via a flexible pressure conduit. A combustor for heating an expansion chamber disposed in a displacer cylinder of the displacer unit is provided around a head portion of the displacer cylinder. A fuel supply device is connected to the combustor. An actuator for arbitrarily driving a displacer piston of the displacer unit is connected to the displacer piston.